{
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\begin{tabular}{l*{4}{c}}
\hline\hline
                    &\multicolumn{1}{c}{\specialcell{Uses any \\ new source}}&\multicolumn{1}{c}{\specialcell{Uses any \\ new source}}&\multicolumn{1}{c}{\specialcell{Fraction \\ water from \\ new source }}&\multicolumn{1}{c}{\specialcell{Fraction \\ water from \\ new source }}\\\cmidrule(lr){2-2}\cmidrule(lr){3-3}\cmidrule(lr){4-4}\cmidrule(lr){5-5}
                    &\multicolumn{1}{c}{(1)}   &\multicolumn{1}{c}{(2)}   &\multicolumn{1}{c}{(3)}   &\multicolumn{1}{c}{(4)}   \\
\hline
Treated             &       0.112***&       0.133***&       0.065***&       0.083***\\
                    &     (0.020)   &     (0.018)   &     (0.016)   &     (0.013)   \\
Baseline As > 10 ppb&       0.033** &               &       0.024*  &               \\
                    &     (0.013)   &               &     (0.013)   &               \\
Treated x baseline As > 10 ppb&       0.043*  &               &       0.024   &               \\
                    &     (0.022)   &               &     (0.018)   &               \\
Baseline As > 50 ppb&               &       0.040** &               &       0.040** \\
                    &               &     (0.017)   &               &     (0.016)   \\
Treated x baseline As > 50 ppb&               &       0.037   &               &       0.002   \\
                    &               &     (0.027)   &               &     (0.022)   \\
Constant            &       0.099***&       0.107***&       0.086***&       0.090***\\
                    &     (0.012)   &     (0.009)   &     (0.011)   &     (0.008)   \\
\hline
R$^2$               &        0.07   &        0.07   &        0.05   &        0.05   \\
N                   &        6051   &        6051   &        6051   &        6051   \\
\hline\hline
\end{tabular}
}
